Using Flipper Zero as a USB-to-UART Serial Bridge

Using Flipper Zero as a USB-to-UART Serial Bridge Flipper Zero can act as a USB serial adapter — useful when you need to communicate with a microcontroller or embedded device and don't have an FTDI cable handy. What This Does Your computer ↔ USB ↔ Flipper ↔ UART ↔ Target device Flipper bridges your PC's USB serial port to the hardware UART on its GPIO pins. Wiring Cross the TX/RX lines — Flipper TX → Target RX, Flipper RX → Target TX. Important: Target device must be 3.3V UART logic. Use a level shifter for 5V systems. On Flipper 1. Apps → GPIO → UART Terminal 2. Or from the USB UART Bridge app 3. Set baud rate to match your device (most common: 115200, 9600, 57600) On the Computer 1. Connect Flipper via USB 2. Flipper appears as a CDC virtual COM port 3. Open any serial terminal: - Windows: PuTTY, Tera Term - Mac/Linux: screen /dev/tty.usbmodem 115200 4. Type commands — they arrive at the target device via Flipper Common Use Cases Debug Arduino/ESP32 over serial without a separate FTDI Access a router or SBC serial console Talk to any UART-based device or module Monitor sensor data from embedded systems Baud Rate Reference

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